Function Notation

For the function f(x) = -3(x-1) find f(0).

• 0

• -3

• 3

• -1

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 5 mean?

• After 5 week the plant is 4 inches tall

• The plant grows at a rate of 5/4 inch per week

• After 4 weeks the plant is 5 inches tall

• The plant grows at a rate of 1 inch per week

If I know that f(2) = 4, what is another way I can write my answer?

• 2,4

• (2, 4)

• That is the only way to write it.

If f(x) = 6x - 9, find f(4).

• (4, 1)

• (4, 33)

• (4, 15)

• (4, -7)

• At 3:00 PM it will be 50 degrees outside.

• At 11:00 AM it will be 50 degrees outside.

• The temperature at 3:00 AM and  11:00 AM is the same.

• 50 hours after 8:00 AM the temperature will be 3 degrees.

• 9, 7, 5, 3,1

• 1, 3, 5, 7, 9

• 0, 1, 2, 3, 4

• -9, -7, 1, 3, 5

What is x if
f(x) = -2?

• 4

• 0

• 3

• 8

The function c(m) = 1.45m + 3.50 represents the cost of a taxi for m miles.
What does c(m) represent?

• Total Cost of a taxi

• Total Miles in taxi

A company is selling bubble gum.  The function g(x)=3x+4 tells the company how much to charge if someone buys x packages of bubble gum.  Find g(8) and tell what it means within the context of the problem.

• g(8)=8.  This means that after 8 packages of gum, the company makes $8.

• g(8)=42.  This means that 8 packages of gum costs $42.

• g(8)=28.  This means that 8 packages of gum costs $28.

• g(8)=24.  This means that 8 packages of gum costs $24.

a way of writing the outputs of a function that you have given a name to. If the function is named f and x is an input, then f(x) denotes the corresponding output.

• Rate of change

• parent function

• function notation

• Linear equation